Source:http://linkedlifedata.com/resource/umls/id/C0183469
SPN: An ophthalmic sponge is a device that is an absorbant sponge, pad, or spear made of folded gauze, cotton, cellulose, or other material intended to absorb fluids from the operative field in ophthalmic surgery.,UMD: Devices made of absorbent material (e.g., gauze, cotton, cellulose) intended to be used to absorb fluids from the operative field during ophthalmic surgery.